Attic Draftstopping Residential

Individuals that deal mainly with residential construction may get the impression that attics are never sprinklered but the allowance to omit sprinklers from combustible attic spaces is a fairly recent development one that accompanied the 1980s development of special sprinkler installation standards aimed at encouraging low cost protection for dwellings and multiple dwellings.

Attic draftstopping residential.

Los angeles building code 7 fire and smoke protection features 718 concealed spaces 718 4 draftstopping in attics 718 4 2 groups r 1 and r 2. The ibc in residential multi family occupancies less than 4 stories in height does not require sprinklers in the attic. Draftstopping shall be provided in attics mansards overhangs or other concealed roof spaces of group r 2 buildings with three or more dwelling. A well ventilated home is drier healthier and more comfortable.

718 4 3 nfpa 13. Draftstopping is required in concealed spaces in type v combustible construction to subdivide attic spaces. Draft stops shall be installed in trussed roofs between roof and bottom chord of trusses in all buildings exceeding twenty thousand square feet 20 000 sq. Exit enclosure doors sprinklers delete the maximum transmitted temperature end point for door assemblies.

In combustible construction draftstopping shall be installed to subdivide attic spaces and concealed roof spaces in the locations prescribed in sections 718 4 2 and 718 4 3. Cdafd another smart texan is correct the provision only applies to draft stopping not attic sprinklers. Well placed windows doors and other openings allow air to circulate without creating. Draftstopping shall be provided in floor ceiling spaces in group r 1 buildings in group r 2 buildings with three or more dwelling units in group r 3 buildings with two dwelling units and in group r 4 buildings.

Where the attic is fully equipped with an automatic fire extinguishing system the divided horizontal area may be tripled. Ventilation of concealed roof spaces shall be maintained in accordance with section 1203 2. Draftstopping shall be located above and in line with the dwelling unit and sleeping unit separations. About california ventilation building codes.

Sprinklers eliminate the requirement for draftstopping at 1 000 sq ft in floor ceiling assembly 718 3 3 nfpa 13.